A pyroxene with chemical formula of NaAlSi2O6. Jadeite occurs in high-pressure, low temperature metamorphic rocks and is the primary mineral in jade.
See pyroxene group for additional details.
A pyroxene with chemical formula of NaAlSi2O6. Jadeite occurs in high-pressure, low temperature metamorphic rocks and is the primary mineral in jade.
See pyroxene group for additional details.
An obsolete name for altered material, probably vermiculite.
See tobermorite and see calcium silicate hydrate (CSH) in Part 1.
See bentonite.
See at-rest condition.
A member of the palygorskite-sepiolite group with a composition of (K,Na)5Fe3+7 (Si20O50) (OH)6 . 12(H2O). The kalifersite shows a regular alternation of structural components of sepiolite and palygorskite Ferraris et al. (1998).
See palygorskite-sepiolite group
An obsolete term for muscovite.
discredited term, use kaolin-serpentine group (Bailey, 1980)
Discredited term, use kaolin-serpentine group (Bailey, 1980).
A name previously proposed for the kaolin/serpentine group. The name has not been approved for use by any mineralogical nomenclature committee and its use should be discontinued.